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authorGiovanni Di Sirio <gdisirio@gmail.com>2016-03-05 11:03:54 +0000
committerGiovanni Di Sirio <gdisirio@gmail.com>2016-03-05 11:03:54 +0000
commitffed4a0266e0ca47c1af542602c2a45b29d0e0ad (patch)
treed1e1cf3fefe8e225dad67434cb839a2d15ba1307
parent712ecf57f92786cded15efb214e3eea76ed0332a (diff)
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Fixed bug #723.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9017 35acf78f-673a-0410-8e92-d51de3d6d3f4
-rw-r--r--os/hal/ports/STM32/LLD/GPIOv2/pal_lld.c27
-rw-r--r--os/hal/ports/STM32/LLD/GPIOv3/pal_lld.c27
-rw-r--r--readme.txt2
3 files changed, 42 insertions, 14 deletions
diff --git a/os/hal/ports/STM32/LLD/GPIOv2/pal_lld.c b/os/hal/ports/STM32/LLD/GPIOv2/pal_lld.c
index 10fc1a72b..b4545f094 100644
--- a/os/hal/ports/STM32/LLD/GPIOv2/pal_lld.c
+++ b/os/hal/ports/STM32/LLD/GPIOv2/pal_lld.c
@@ -171,17 +171,30 @@ void _pal_lld_setgroupmode(ioportid_t port,
uint32_t altrmask, m1, m2, m4;
altrmask = altr << ((bit & 7) * 4);
- m4 = 15 << ((bit & 7) * 4);
- if (bit < 8)
- port->AFRL = (port->AFRL & ~m4) | altrmask;
- else
- port->AFRH = (port->AFRH & ~m4) | altrmask;
m1 = 1 << bit;
- port->OTYPER = (port->OTYPER & ~m1) | otyper;
m2 = 3 << (bit * 2);
+ m4 = 15 << ((bit & 7) * 4);
+ port->OTYPER = (port->OTYPER & ~m1) | otyper;
port->OSPEEDR = (port->OSPEEDR & ~m2) | ospeedr;
port->PUPDR = (port->PUPDR & ~m2) | pupdr;
- port->MODER = (port->MODER & ~m2) | moder;
+ if (moder == PAL_STM32_MODE_ALTERNATE) {
+ /* If going in alternate mode then the alternate number is set
+ before switching mode in order to avoid glitches.*/
+ if (bit < 8)
+ port->AFRL = (port->AFRL & ~m4) | altrmask;
+ else
+ port->AFRH = (port->AFRH & ~m4) | altrmask;
+ port->MODER = (port->MODER & ~m2) | moder;
+ }
+ else {
+ /* If going into a non-alternate mode then the mode is switched
+ before setting the alternate mode in order to avoid glitches.*/
+ port->MODER = (port->MODER & ~m2) | moder;
+ if (bit < 8)
+ port->AFRL = (port->AFRL & ~m4) | altrmask;
+ else
+ port->AFRH = (port->AFRH & ~m4) | altrmask;
+ }
}
mask >>= 1;
if (!mask)
diff --git a/os/hal/ports/STM32/LLD/GPIOv3/pal_lld.c b/os/hal/ports/STM32/LLD/GPIOv3/pal_lld.c
index 5f96bb785..b45f7fe15 100644
--- a/os/hal/ports/STM32/LLD/GPIOv3/pal_lld.c
+++ b/os/hal/ports/STM32/LLD/GPIOv3/pal_lld.c
@@ -156,18 +156,31 @@ void _pal_lld_setgroupmode(ioportid_t port,
uint32_t altrmask, m1, m2, m4;
altrmask = altr << ((bit & 7) * 4);
- m4 = 15 << ((bit & 7) * 4);
- if (bit < 8)
- port->AFRL = (port->AFRL & ~m4) | altrmask;
- else
- port->AFRH = (port->AFRH & ~m4) | altrmask;
m1 = 1 << bit;
+ m2 = 3 << (bit * 2);
+ m4 = 15 << ((bit & 7) * 4);
port->OTYPER = (port->OTYPER & ~m1) | otyper;
port->ASCR = (port->ASCR & ~m1) | ascr;
- m2 = 3 << (bit * 2);
port->OSPEEDR = (port->OSPEEDR & ~m2) | ospeedr;
port->PUPDR = (port->PUPDR & ~m2) | pupdr;
- port->MODER = (port->MODER & ~m2) | moder;
+ if (moder == PAL_STM32_MODE_ALTERNATE) {
+ /* If going in alternate mode then the alternate number is set
+ before switching mode in order to avoid glitches.*/
+ if (bit < 8)
+ port->AFRL = (port->AFRL & ~m4) | altrmask;
+ else
+ port->AFRH = (port->AFRH & ~m4) | altrmask;
+ port->MODER = (port->MODER & ~m2) | moder;
+ }
+ else {
+ /* If going into a non-alternate mode then the mode is switched
+ before setting the alternate mode in order to avoid glitches.*/
+ port->MODER = (port->MODER & ~m2) | moder;
+ if (bit < 8)
+ port->AFRL = (port->AFRL & ~m4) | altrmask;
+ else
+ port->AFRH = (port->AFRH & ~m4) | altrmask;
+ }
port->LOCKR = (port->LOCKR & ~m1) | lockr;
}
mask >>= 1;
diff --git a/readme.txt b/readme.txt
index e1b4de613..b9eda38c4 100644
--- a/readme.txt
+++ b/readme.txt
@@ -95,6 +95,8 @@
- RT: Merged RT4.
- NIL: Merged NIL2.
- NIL: Added STM32F7 demo.
+- VAR: Fixed palSetMode glitching outputs (bug #723)(backported to 3.0.6
+ and 16.1.4).
- VAR: Fixed error in STM32 PWM driver regarding channels 4 and 5 (bug #722)
(backported to 3.0.6 and 16.1.4).
- VAR: Fixed wrong flash and ram size in linker script for maple mini